520551113901 has 32 divisors (see below), whose sum is σ = 857968124160. Its totient is φ = 273377355264.

The previous prime is 520551113899. The next prime is 520551113917. The reversal of 520551113901 is 109311155025.

520551113901 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 520551113901 - 2¹ = 520551113899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520551113101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4100760 + ... + 4225793.

It is an arithmetic number, because the mean of its divisors is an integer number (26811503880).

Almost surely, 2^520551113901 is an apocalyptic number.

It is an amenable number.

520551113901 is a deficient number, since it is larger than the sum of its proper divisors (337417010259).

520551113901 is a wasteful number, since it uses less digits than its factorization.

520551113901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326805.

The product of its (nonzero) digits is 6750, while the sum is 33.

Adding to 520551113901 its reverse (109311155025), we get a palindrome (629862268926).

The spelling of 520551113901 in words is "five hundred twenty billion, five hundred fifty-one million, one hundred thirteen thousand, nine hundred one".